The Principle of Total Potential Energy With Stationary Value in Elastic System Dynamics and Its Application to the Analysis of Vibration and Dynamic Stability是什么意思_The Principle of Total Potential Energy With Stationary Value in Elastic System Dynamics and Its Application to the Analysis of Vibration and Dynamic Stability在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句